J.L.
I have used the following Jesse Tree kit in the past (link below). It has daily ornaments that you can photocopy and your child can cut out and color. It does come with a paper tree poster you can color or decorate. But we didn't use ours. Instead I bought a miniature pine and hung them on that. Another year, we bought a Jesse wooden tree (looks like a mitten rack) made specifically for displaying ornaments. I have also seen people just use twigs and boughs from their yard mounted in a flower pot or on wooden slats too.
For the kit see:
http://www.amazon.com/Jesse-Tree-Kit-Lynn-Simms/dp/081983...
I have also used the following books for daily activity ideas for advent:
http://www.amazon.com/Joy-World-Advent-Activities-Family/...
http://www.amazon.com/Things-Make-Do-Advent-Christmas/dp/...
http://www.amazon.com/Advent-Arts-Christmas-Crafts-Prayer...
You can buy pre-made Jesse Trees from the following sites:
www.stpatricksguild.com
www.christianbook.com
www.adoremusbooks.com
And one year we used this Advent calendar on dvd, which was fun for the older kids (6 and up) as well as the big people. :) Each day there is a 3-5 minute video highlighting saints, traditions, stories and prayers in preparation for Christmas.
http://www.amazon.com/Advent-Calendar-DVD-Christmas-Count...
Advent wreaths for Sunday observance are nice too. There are some pretty cute felt ones that use no fire if you have that concern with your little one.
See:
http://www.amazon.com/Fabric-Advent-Wreath-%252d-9%2522/d...
Hope this helps and have fun celebrating the season.